Abstract
Cytokines are a group of immunomodulatory proteins leading to a variety of immune reactions in the human; these cytokines play a significant role in the development of appropriate immune responses against T. gondii. This study aims to reveal the association of toxoplasmosis with serum levels of IL-3, IL-17A, and IL-27 in aborted women. The blood samples of patients and controls were collected from Al-Alawiya Maternity Teaching Hospital/Baghdad/Iraq from 2019 to 2020 for detecting anti-T. gondii antibodies (IgG and IgM) and the level of interleukins by ELISA. The results of TORCH by rapid test for recurrent abortion recorded 25.3% seropositive for anti-Toxoplasma antibodies, and 31.5% seropositive for one or more cases of TORCH test (Cytomegalovirus, Rubella, and Herpes). Whereas the results for anti-T. gondii IgG and IgM antibodies were shown elevated positivity percentages by ELISA test; these percentages were 56.2% in recurrent abortion women with significant differences (P < 0.05). The results suggested that the IL-3 serum concentration of pregnant women, recurrent abortion, and recurrent abortion with toxoplasmosis was declined versus healthy women with significant differences (p < 0.05). However, the results revealed that the concentration of IL-17A in recurrent abortion, and recurrent abortion with toxoplasmosis elevated versus healthy women and pregnant women with significant difference (p < 0.05). Whereas the results indicated that the IL-27 serum concentration elevated with significant differences in recurrent abortion with toxoplasmosis group compared to healthy women, pregnant women, and recurrent abortion. Interestingly, the serum levels for IL-27 increased comparing to the levels of IL-3 and IL-17A in all groups with significant differences (P < 0.05). In conclusion, it appeared in this study that the role of IL-3, IL-17A, and IL-27 in the maternal immune response during infections can lead to abortion.
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